12. American Optometric Association, What You Need to Know About Lens Hygiene and Compliance. https://www.aoa.org/patients-and-public/caring-for-your-vision/contact-lenses/what-you-need-to-know-about-contact-lens-hygiene-and-compliance?sso=y. Accessed on June 07, 2017.

12. American Optometric Association, What You Need to Know About Lens Hygiene and Compliance. https://www.aoa.org/patients-and-public/caring-for-your-vision/contact-lenses/what-you-need-to-know-about-contact-lens-hygiene-and-compliance?sso=y. Accessed on June 07, 2017.